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planner/core: keep sort operator when ordered by tablesample (#48315)#48451

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ti-chi-bot[bot] merged 2 commits intopingcap:release-7.5from
ti-chi-bot:cherry-pick-48315-to-release-7.5
Nov 10, 2023
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planner/core: keep sort operator when ordered by tablesample (#48315)#48451
ti-chi-bot[bot] merged 2 commits intopingcap:release-7.5from
ti-chi-bot:cherry-pick-48315-to-release-7.5

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This is an automated cherry-pick of #48315

What problem does this PR solve?

Issue Number: close #48253

Problem Summary:

TableSampleExecutor does not process unsigned int handles. They are treated as the signed handles.

What is changed and how it works?

Always keep the sort operator when a TABLESAMPLE query contains ORDER BY clause.

Check List

Tests

  • Unit test
  • Integration test
  • Manual test (add detailed scripts or steps below)
  • No need to test
    • I checked and no code files have been changed.

Side effects

  • Performance regression: Consumes more CPU
  • Performance regression: Consumes more Memory
  • Breaking backward compatibility

Documentation

  • Affects user behaviors
  • Contains syntax changes
  • Contains variable changes
  • Contains experimental features
  • Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

Signed-off-by: ti-chi-bot <ti-community-prow-bot@tidb.io>
@ti-chi-bot ti-chi-bot added release-note-none Denotes a PR that doesn't merit a release note. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. type/cherry-pick-for-release-7.5 This PR is cherry-picked to release-7.5 from a source PR. labels Nov 8, 2023
@ti-chi-bot ti-chi-bot bot added size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. and removed size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Nov 8, 2023
@ti-chi-bot ti-chi-bot added the cherry-pick-approved Cherry pick PR approved by release team. label Nov 9, 2023
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LGTM

@ti-chi-bot ti-chi-bot bot added approved needs-1-more-lgtm Indicates a PR needs 1 more LGTM. labels Nov 9, 2023
@ti-chi-bot ti-chi-bot bot added size/M Denotes a PR that changes 30-99 lines, ignoring generated files. and removed size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. labels Nov 10, 2023
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ti-chi-bot bot commented Nov 10, 2023

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: AilinKid, Benjamin2037

The full list of commands accepted by this bot can be found here.

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Details Needs approval from an approver in each of these files:
  • OWNERS [AilinKid,Benjamin2037]

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@ti-chi-bot ti-chi-bot bot added lgtm and removed needs-1-more-lgtm Indicates a PR needs 1 more LGTM. labels Nov 10, 2023
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ti-chi-bot bot commented Nov 10, 2023

[LGTM Timeline notifier]

Timeline:

  • 2023-11-09 01:35:53.351717626 +0000 UTC m=+3694550.938827771: ☑️ agreed by Benjamin2037.
  • 2023-11-10 08:26:02.650766211 +0000 UTC m=+3805560.237876341: ☑️ agreed by AilinKid.

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/retest

@ti-chi-bot ti-chi-bot bot merged commit 64ade31 into pingcap:release-7.5 Nov 10, 2023
@ti-chi-bot ti-chi-bot deleted the cherry-pick-48315-to-release-7.5 branch April 15, 2025 08:33
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approved cherry-pick-approved Cherry pick PR approved by release team. lgtm release-note-none Denotes a PR that doesn't merit a release note. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. type/cherry-pick-for-release-7.5 This PR is cherry-picked to release-7.5 from a source PR.

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4 participants